Weather Records on 18 September 1981

1,671 weather records were set or tied worldwide on 18 September 1981. Highest significance: Fremont, US.

Key Facts for 18 September 1981

On 18 September 1981, 1,671 weather records were set or tied at long-record stations worldwide.
492 were record highs and 1,050 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 37 monthly and 1,633 daily.
Fremont set a daily record precipitation of 63.5 mm (2.5 in) on 18 September 1981.
Across 163 earlier years (1803 to 2026) the same calendar date averaged 414 records.

Record Map

1,671 stations

1,671 station records on 18 September 1981 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 September 1981: highest significance records shown on the map
Station	Country	Type	Value	Significance
Fremont	United States	Record daily precipitation	63.5 mm (2.5 in)	55 of 100 (Notable)
Kulani Camp 79	United States	Record daily precipitation	71.1 mm (2.8 in)	48 of 100 (Notable)
Kunming	China	Record daily precipitation	75.9 mm (3.0 in)	45 of 100 (Notable)
Tilburg	Netherlands	Record daily precipitation	34.5 mm (1.4 in)	45 of 100 (Notable)
Pericos	Mexico	Record low maximum temperature	16.1 C (61.0 F)	44 of 100 (Notable)
Kjevik	Norway	Record daily precipitation	66.6 mm (2.6 in)	44 of 100 (Notable)
Lathen	Germany	Record daily precipitation	29.6 mm (1.2 in)	42 of 100 (Notable)
Aseral	Norway	Record daily precipitation	85.9 mm (3.4 in)	42 of 100 (Notable)
Linkoeping-Malmslaett	Sweden	Record low minimum temperature	-0.6 C (30.9 F)	42 of 100 (Notable)
University	United States	Record low minimum temperature	1.7 C (35.1 F)	42 of 100 (Notable)
Beeville 5 NE	United States	Record low minimum temperature	10.0 C (50.0 F)	42 of 100 (Notable)
Pichucalco (Smn)	Mexico	Record low minimum temperature	16.1 C (61.0 F)	41 of 100 (Notable)
Vastervik	Sweden	Record low minimum temperature	-1.4 C (29.5 F)	41 of 100 (Notable)
Hawkinsville	United States	Record low minimum temperature	6.1 C (43.0 F)	41 of 100 (Notable)
Circleville	United States	Record low maximum temperature	12.2 C (54.0 F)	41 of 100 (Notable)
McAlester Rgnl AP	United States	Record low minimum temperature	3.3 C (37.9 F)	41 of 100 (Notable)
Forbes (Camp Street)	Australia	Record high maximum temperature	32.1 C (89.8 F)	40 of 100 (Notable)
Urepetiro	Mexico	Record low maximum temperature	19.4 C (66.9 F)	40 of 100 (Notable)
Mestad I Oddernes	Norway	Record daily precipitation	151.4 mm (6.0 in)	40 of 100 (Notable)
Fayetteville Exp STN	United States	Record low maximum temperature	16.1 C (61.0 F)	40 of 100 (Notable)
Martinsdale 3 NNW	United States	Record high maximum temperature	33.9 C (93.0 F)	40 of 100 (Notable)
Findlay Wpcc	United States	Record low maximum temperature	10.6 C (51.1 F)	40 of 100 (Notable)
Marshall	United States	Record low minimum temperature	5.0 C (41.0 F)	40 of 100 (Notable)
Gavle	Sweden	Record low minimum temperature	-0.9 C (30.4 F)	39 of 100 (Notable)
Winter Haven	United States	Record low maximum temperature	23.3 C (73.9 F)	39 of 100 (Notable)
Upper Sandusky	United States	Record daily precipitation	46.2 mm (1.8 in)	39 of 100 (Notable)
Danevang 1 W	United States	Record low minimum temperature	10.6 C (51.1 F)	39 of 100 (Notable)
Oconomowoc Wwtp	United States	Record low maximum temperature	14.4 C (57.9 F)	39 of 100 (Notable)
Melbourne Regional Office	Australia	Record high minimum temperature	16.9 C (62.4 F)	38 of 100 (Notable)
Pelee Island	Canada	Record low maximum temperature	12.0 C (53.6 F)	38 of 100 (Notable)
Tepuxtepec	Mexico	Record low maximum temperature	10.6 C (51.1 F)	38 of 100 (Notable)
Talladega	United States	Record low minimum temperature	4.4 C (39.9 F)	38 of 100 (Notable)
Malvern	United States	Record low minimum temperature	5.6 C (42.1 F)	38 of 100 (Notable)
Lumpkin 2 SE	United States	Record low minimum temperature	6.7 C (44.1 F)	38 of 100 (Notable)
El Reno 1 N	United States	Record low minimum temperature	3.3 C (37.9 F)	38 of 100 (Notable)
Guthrie 5S	United States	Record low minimum temperature	3.3 C (37.9 F)	38 of 100 (Notable)
Hartford Wwtp	United States	Record low maximum temperature	15.0 C (59.0 F)	38 of 100 (Notable)
Tashkent	Uzbekistan	Record high minimum temperature	17.4 C (63.3 F)	38 of 100 (Notable)
Vishakhapatnam	India	Record daily precipitation	80.0 mm (3.1 in)	37 of 100 (Notable)
Poncitlan	Mexico	Record low maximum temperature	20.0 C (68.0 F)	37 of 100 (Notable)
Kiev	Ukraine	Record low maximum temperature	7.1 C (44.8 F)	37 of 100 (Notable)
Highland Home	United States	Record low minimum temperature	8.3 C (46.9 F)	37 of 100 (Notable)
Ozark	United States	Record low minimum temperature	5.0 C (41.0 F)	37 of 100 (Notable)
Watseka Public Works	United States	Record low maximum temperature	13.3 C (55.9 F)	37 of 100 (Notable)
Hillsdale	United States	Record low maximum temperature	11.7 C (53.1 F)	37 of 100 (Notable)
Pascagoula 3 NE	United States	Record low minimum temperature	12.8 C (55.0 F)	37 of 100 (Notable)
Water Valley	United States	Record low minimum temperature	3.9 C (39.0 F)	37 of 100 (Notable)
Gatesville	United States	Record low maximum temperature	22.8 C (73.0 F)	37 of 100 (Notable)
Weatherford	United States	Record low minimum temperature	5.0 C (41.0 F)	37 of 100 (Notable)
Barkerville	Canada	Record high maximum temperature	28.0 C (82.4 F)	36 of 100 (Notable)
Ixmiquilpan (Smn)	Mexico	Record low maximum temperature	12.2 C (54.0 F)	36 of 100 (Notable)
Atequiza	Mexico	Record low maximum temperature	20.6 C (69.1 F)	36 of 100 (Notable)
Tovdal	Norway	Record daily precipitation	52.9 mm (2.1 in)	36 of 100 (Notable)
Livingston	United States	Record low minimum temperature	7.2 C (45.0 F)	36 of 100 (Notable)
De Funiak Springs 1 E	United States	Record low minimum temperature	9.4 C (48.9 F)	36 of 100 (Notable)
W Pt	United States	Record low minimum temperature	6.7 C (44.1 F)	36 of 100 (Notable)
Angola	United States	Record low maximum temperature	11.7 C (53.1 F)	36 of 100 (Notable)
State UNIV	United States	Record low minimum temperature	7.2 C (45.0 F)	36 of 100 (Notable)
Bellefontaine	United States	Record low maximum temperature	10.6 C (51.1 F)	36 of 100 (Notable)
Arlington	United States	Record high minimum temperature	20.0 C (68.0 F)	36 of 100 (Notable)

Counts by Type and Timescale

1,671 records

Records set or tied on 18 September 1981 by type: Highest daily maximum 331, Lowest daily maximum 463, Highest daily minimum 161, Lowest daily minimum 587, Heaviest daily rainfall 128, Deepest snow cover 1.

Records on 18 September 1981 by type
Record type	Records
Highest daily maximum	331
Lowest daily maximum	463
Highest daily minimum	161
Lowest daily minimum	587
Heaviest daily rainfall	128
Heaviest daily snowfall	0
Deepest snow cover	1

Records on 18 September 1981 by timescale: all-time 1, monthly 37, daily 1,633.

How Much Records Were Beaten By

1,373 broken records

Margins by which the 1,373 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 62.0. Ties are not counted.

Top 20 by Significance

18 September 1981

Top 20 records on 18 September 1981 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 September 1981	Fremont, US	daily rain	63.5 mm (2.5 in)	30.5 mm (1.2 in)	74 years	55 of 100 (Notable)
18 September 1981	Kulani Camp 79, US	daily rain	71.1 mm (2.8 in)	43.2 mm (1.7 in)	18 years	48 of 100 (Notable)
18 September 1981	Kunming, CN	daily rain	75.9 mm (3.0 in)	54.5 mm (2.1 in)	8 years	45 of 100 (Notable)
18 September 1981	Tilburg, NL	daily rain	34.5 mm (1.4 in)	22.0 mm (0.9 in)	8 years	45 of 100 (Notable)
18 September 1981	Pericos, MX	daily low max	16.1 C (61.0 F)	6.7 C (12.1 F)	30 years	44 of 100 (Notable)
18 September 1981	Kjevik, NO	daily rain	66.6 mm (2.6 in)	37.7 mm (1.5 in)	28 years	44 of 100 (Notable)
18 September 1981	Lathen, DE	daily rain	29.6 mm (1.2 in)	18.9 mm (0.7 in)	32 years	42 of 100 (Notable)
18 September 1981	Aseral, NO	monthly rain	85.9 mm (3.4 in)	7.9 mm (0.31 in)	63 years	42 of 100 (Notable)
18 September 1981	Linkoeping-Malmslaett, SE	daily low min	-0.6 C (30.9 F)	2.1 C (3.8 F)	87 years	42 of 100 (Notable)
18 September 1981	University, US	daily low min	1.7 C (35.1 F)	5.0 C (9.0 F)	78 years	42 of 100 (Notable)
18 September 1981	Beeville 5 NE, US	daily low min	10.0 C (50.0 F)	3.3 C (5.9 F)	78 years	42 of 100 (Notable)
18 September 1981	Pichucalco (Smn), MX	daily low min	16.1 C (61.0 F)	3.9 C (7.0 F)	30 years	41 of 100 (Notable)
18 September 1981	Vastervik, SE	monthly low min	-1.4 C (29.5 F)	0.4 C (0.7 F)	68 years	41 of 100 (Notable)
18 September 1981	Hawkinsville, US	daily low min	6.1 C (43.0 F)	3.9 C (7.0 F)	71 years	41 of 100 (Notable)
18 September 1981	Circleville, US	daily low max	12.2 C (54.0 F)	4.5 C (8.1 F)	80 years	41 of 100 (Notable)
18 September 1981	McAlester Rgnl AP, US	daily low min	3.3 C (37.9 F)	5.0 C (9.0 F)	78 years	41 of 100 (Notable)
18 September 1981	Forbes (Camp Street), AU	daily high max	32.1 C (89.8 F)	2.1 C (3.8 F)	83 years	40 of 100 (Notable)
18 September 1981	Urepetiro, MX	daily low max	19.4 C (66.9 F)	3.9 C (7.0 F)	30 years	40 of 100 (Notable)
18 September 1981	Mestad I Oddernes, NO	all-time rain	151.4 mm (6.0 in)	14.7 mm (0.6 in)	4 years	40 of 100 (Notable)
18 September 1981	Fayetteville Exp STN, US	daily low max	16.1 C (61.0 F)	3.3 C (5.9 F)	80 years	40 of 100 (Notable)

Significance is a score from 0 to 100 combining margin, the age of the old record and the length of the station's record. How it is computed.

The Same Date in Other Years

1803 to 1981

Records set or tied on this calendar date in each year from 1803 to 1981. 1981 had 1,671 records.

Counts for years before the ledger starts come from the same station rules.

Records on 09-18 in each year
Year	Records
1803	1
1811	1
1814	1
1819	1
1829	1
1832	1
1834	1
1835	1
1837	2
1847	2
1848	1
1849	1
1851	4
1859	1
1861	1
1865	1
1869	1
1871	1
1875	1
1876	2
1877	1
1879	1
1880	1
1881	1
1882	1
1885	1
1886	4
1889	6
1890	1
1891	1
1893	4
1894	2
1895	2
1896	4
1897	3
1898	5
1899	3
1900	2
1901	10
1902	8
1903	58
1904	6
1905	22
1906	16
1907	4
1908	11
1909	17
1910	5
1911	8
1912	43
1913	44
1914	56
1915	41
1916	58
1917	99
1918	57
1919	48
1920	56
1921	213
1922	45
1923	114
1924	62
1925	269
1926	205
1927	189
1928	114
1929	309
1930	124
1931	429
1932	226
1933	370
1934	188
1935	281
1936	155
1937	422
1938	373
1939	190
1940	402
1941	318
1942	1,001
1943	624
1944	503
1945	732
1946	576
1947	927
1948	427
1949	356
1950	370
1951	320
1952	340
1953	245
1954	446
1955	672
1956	587
1957	429
1958	491
1959	829
1960	351
1961	478
1962	360
1963	453
1964	282
1965	1,172
1966	498
1967	357
1968	763
1969	424
1970	377
1971	1,245
1972	691
1973	593
1974	559
1975	976
1976	615
1977	619
1978	1,162
1979	709
1980	652
1981	1,671
1982	603
1983	936
1984	951
1985	636
1986	730
1987	1,244
1988	997
1989	778
1990	904
1991	1,377
1992	821
1993	747
1994	852
1995	935
1996	1,237
1997	935
1998	1,038
1999	583
2000	1,146
2001	993
2002	828
2003	815
2004	1,027
2005	781
2006	1,309
2007	670
2008	697
2009	692
2010	1,040
2011	1,050
2012	922
2013	666
2014	682
2015	934
2016	893
2017	518
2018	1,200
2019	768
2020	682
2021	582
2022	613
2023	639
2024	687
2025	471
2026	864

Download the Data

Data for records on 1981-09-18: CSV or JSON. Field meanings are on the data page.

Sources: Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Made with Natural Earth. Public domain map data. Borders are Natural Earth's de facto depiction. Data as of 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Margin	Records
0 to 10	1,336
10 to 20	24
20 to 30	5
30 to 40	4
40 to 50	1
50 to 60	2
60 to 70	1